export const getUserIP = (onNewIP) => { // 获取ip地址
    debugger
    let MyPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection
    let pc = new MyPeerConnection({ iceServers: [] })
    let noop = function () { }
    let localIPs = {}
    let ipRegex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/g
    function iterateIP(ip) {
        if (!localIPs[ip]) onNewIP(ip)
        localIPs[ip] = true
    }
    pc.createDataChannel('')
    pc.createOffer().then(function (sdp) {
        sdp.sdp.split('\n').forEach(function (line) {
            if (line.indexOf('candidate') < 0) return
            line.match(ipRegex).forEach(iterateIP)
        })
        pc.setLocalDescription(sdp, noop, noop)
    }).catch(function (reason) {
        // An error occurred, so handle the failure to connect
        console.log('获取ip地址失败', reason)
    })
    // seen for candidate events
    pc.onicecandidate = function (ice) {
        if (!ice || !ice.candidate || !ice.candidate.candidate || !ice.candidate.candidate.match(ipRegex)) return
        ice.candidate.candidate.match(ipRegex).forEach(iterateIP)
    }
}